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Half Ironman (middle distance) in North Wales

Find half ironman (middle distance) in North Wales in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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The totally unique ROC format, from Abersoch Bay to the top of Wales’ highest mountain and back. Swim, Bike, Mountain, Bike, Run; THE ROC WALES is triathlon - tough and redefined.
  • Sat 9 May
  • £250-£270
Pwllheli, Gwynedd, UK

THE ROC WALES

The totally unique ROC format, from Abersoch Bay to the top of Wales’ highest mountain and back. Swim, Bike, Mountain, Bike, Run; THE ROC WALES is triathlon - tough and redefined.

  • 1.5 km sea swimming
  • 100 km road cycling
  • 13 km multi terrain running + 3330 ft ascent
The most iconic multi-sport adventure race in Wales, combining a lake swim, brutal mountain climbs and a demanding run through Snowdonia’s dramatic, awe-inspiring landscape over a Middle distance tri.
  • Sun 14 Jun
  • £239.99-£259.99
Caernarfon, Gwynedd, UK

Slateman Legend (70.3) Triathlon

The most iconic multi-sport adventure race in Wales, combining a lake swim, brutal mountain climbs and a demanding run through Snowdonia’s dramatic, awe-inspiring landscape over a Middle distance tri.

  • 1900 m lake swimming
  • 92.6 km road cycling + 4297 ft ascent
  • 23.1 km trail running + 2723 ft ascent
Cold-water swim, relentless mountain climbs and a brutal trail run through Snowdonia — this ultimate endurance challenge demands grit, resilience and rewards you with unforgettable views.
  • Sun 26 Jul
  • £239.99-£259.99
Betws-y-Coed, Clwyd, UK

Snowman Legend Triathlon

Cold-water swim, relentless mountain climbs and a brutal trail run through Snowdonia — this ultimate endurance challenge demands grit, resilience and rewards you with unforgettable views.

  • 1900 m lake swimming
  • 95.6 km road cycling + 5045 ft ascent
  • 21.2 km multi terrain running + 2926 ft ascent
The Legend returns to Bala for the first time since 2017 and it’s ready to challenge and inspire like never before. This is your chance to go further, dig deeper, and achieve something extraordinary.
  • Sun 6 Sep
  • £239.99-£259.99
Bala, Gwynedd, UK

Triathlon Y Bala | Legend (70.3) Middle Distance

The Legend returns to Bala for the first time since 2017 and it’s ready to challenge and inspire like never before. This is your chance to go further, dig deeper, and achieve something extraordinary.

  • 1900 m lake swimming
  • 85 km road cycling
  • 21.1 km road running
An unforgettable adventure triathlon, The Sandman has been described as one of the most beautiful and thrilling multi-terrain races in the UK, featuring the Middle Distance National Championships.
  • Sun 27 Sep
  • £239.99-£259.99
Llanfairpwllgwyngyll, Isle of Anglesey, UK

Superfeet Sandman Legend (70.3) Triathlon

An unforgettable adventure triathlon, The Sandman has been described as one of the most beautiful and thrilling multi-terrain races in the UK, featuring the Middle Distance National Championships.

  • 1900 m sea swimming
  • 93 km road cycling + 912 m ascent
  • 20 km multi terrain running + 176 m ascent

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